/usr/bin/gwenhywfar-config is in libgwenhywfar60-dev 4.15.2beta-2build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | #! /bin/sh
dir="/usr"
# $Id$
# Author of this file: Martin Preuss<martin@libchipcard.de>
prefix=/usr
exec_prefix=${prefix}
includedir=${prefix}/include
bindir=${exec_prefix}/bin
libdir=${exec_prefix}/lib
result=""
for d in $*; do
    case $d in
	--includes)
	    result="$result -I${includedir}/gwenhywfar4"
	    ;;
	--libraries)
	    result="$result -L${libdir} -lgwenhywfar"
	    ;;
	--bindir)
	    result="$result ${bindir}"
	    ;;
	--headers)
	    result="$result ${includedir}/gwenhywfar4/gwenhywfar"
	    ;;
	--plugins)
	    result="$result ${libdir}/gwenhywfar/plugins/60"
	    ;;
	--vmajor)
	    result="$result 4"
	    ;;
	--vminor)
	    result="$result 15"
	    ;;
	--vpatchlevel)
	    result="$result 2"
	    ;;
	--vbuild)
	    result="$result 0"
	    ;;
	--vtag)
	    result="$result beta"
	    ;;
        --vstring)
	    result="$result 4.15.2"
            ;;
        --has-crypt)
	    # Keep this argument in order not to completely break
	    # the old gwenhywfar.m4 macro.
	    result="This argument is obsolete. See $0 --help for current arguments."
            ;;
	--has-ui)
	    # Keep this argument in order not to completely break
	    # the old gwenhywfar.m4 macro.
	    result="This argument is obsolete. See $0 --help for current arguments."
	    ;;
	--libraries++)
	    # Keep this argument in order not to completely break
	    # the old gwenhywfar.m4 macro.
	    result="This argument is obsolete. See $0 --help for current arguments."
	    ;;
	--libraries-ui)
	    # Keep this argument in order not to completely break
	    # the old gwenhywfar.m4 macro.
	    result="This argument is obsolete. See $0 --help for current arguments."
	    ;;
	*)
	    echo "Usage:"
	    echo "$0 --includes gives you the include flags"
	    echo "$0 --libraries gives you the library flags"
	    echo "$0 --bindir returns the folder for binary tools"
	    echo "$0 --headers gives you the location of the header files"
	    echo "$0 --vmajor gives the major version of LibGwenhywfar"
	    echo "$0 --vminor gives the minor version of LibGwenhywfar"
	    echo "$0 --vpatchlevel gives the patchlevel of LibGwenhywfar"
	    echo "$0 --vbuild gives the build number of LibGwenhywfar"
	    echo "$0 --vtag gives the tag of LibGwenhywfar (cvs, beta or stable)"
	    echo "$0 --vstring returns a version string"
	    exit 1
	    ;;
    esac
done
echo $result
 |